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US Population Density

An interactive map showing how crowded different states are, measured in people per square mile.

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About This MicroSim

This choropleth map visualizes where Americans live:

  • Dark green = Most densely populated (500+ people/sq mi)
  • Light yellow = Least densely populated (under 25 people/sq mi)
  • Hover over any state to see population data and density ranking

Key Concepts Demonstrated

  • East Coast states are much more densely populated
  • Mountain West states have very low population density
  • New Jersey is the most densely populated state
  • Alaska is the least densely populated

Lesson Plan

Learning Objective: Students will analyze population density patterns and explain why some areas have more people.

Bloom's Taxonomy Level: Analyze (L4)

Activities:

  1. Find Extremes (5 min): Identify the 5 most and least densely populated states
  2. Pattern Recognition (5 min): Why is the East Coast more crowded than the West?
  3. Discussion (5 min): What factors attract people to live in certain places?

Technical Notes

  • Built with Leaflet.js choropleth visualization
  • Population data from 2020 US Census
  • Density calculated as population รท land area
  • Population
  • Regions Definition
  • Thematic Maps
  • Natural Resources